package com.tjw.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.tjw.constant.MessageConstant;
import com.tjw.entity.Result;
import com.tjw.service.MemberService;
import com.tjw.service.ReportService;
import com.tjw.service.SetMealService;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author tjw
 * @Date 2020/10/17
 */
@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;
    @Reference
    private SetMealService setMealService;
    @Reference
    private ReportService reportService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        try {
            Map<String, Object> map = new HashMap<>();
            List<String> months = new ArrayList<>();
            Calendar calendar = Calendar.getInstance();
            calendar.add(Calendar.MONTH, -12);
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM");
            for (int i = 0; i < 12; i++) {
                calendar.add(Calendar.MONTH, 1);
                Date date = calendar.getTime();
                months.add(simpleDateFormat.format(date));
            }
            map.put("months", months);
            List<Integer> memberCount = memberService.findMemberCountByMonths(months);
            map.put("memberCount", memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    @RequestMapping("/getSetMealReport")
    public Result getSetMealReport() {
        try {
            List<String> setmealNames = new ArrayList<>();
            List<Map> setmealCount = setMealService.getSetmealReport();
            if (setmealCount != null && setmealCount.size() > 0) {
                for (Map map : setmealCount) {
                    String name = (String) map.get("name");
                    setmealNames.add(name);
                }
            }
            Map<String, Object> map = new HashMap<>();
            map.put("setmealNames", setmealNames);
            map.put("setmealCount", setmealCount);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> map = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            //获取表格中的数据
            Map<String, Object> result = reportService.getBusinessReportData();
            //获取各种参数
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //获取模板文件所在的绝对路径
            String filePath = request.getSession().getServletContext().getRealPath("template" + File.separator + "report_template.xlsx");
            //创建xsl对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //获取第一页
            XSSFSheet sheet = excel.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate); //日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 11;
            for (Map map : hotSetmeal) {
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(++rowNum);
                row.getCell(4).setCellValue(name);
                row.getCell(5).setCellValue(setmeal_count);
                row.getCell(6).setCellValue(proportion.doubleValue());
            }
            //创建输出流
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            excel.write(out);

            out.flush();
            out.close();
            excel.close();

            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
